I've been following along.
I'm so sorry to hear that Vern is not doing well this morning
Will she take a little scrambled or chopped egg? Since your antibiotic dosage is fairly small, I'm wondering if you hand feed her a some egg pieces to get her going, then drop the medicine on additional pieces, if that would be a way to get it into her without having to syringe it. Just a thought.
I know it's exhausting taking care of a sick animal. You are doing good, so hang in there. Know that you are doing everything that you can for her.
How frustrating it is that your vet seems disinterested.
Just for kicks, I have been slowly "polling" the vet clinics where I live to see if they will perform fecal floats or treat/see a chicken - I have no intention of seeing a vet, but we recommend it so often here on BYC, I thought I would just see what the mentality is and if vets are even willing to help. I have 15 clinics/offices where I live, with an average of 3 vets per office. I've called 8 so far (including my own). 4 clinics actually laughed out loud on the phone, 1 was condescending and the other 3 were something like "No Way!". I am glad that your vet at least took a look at your photos and got you some meds.